Facebook Twitter Instagram
    ScienceMotive
    • Class 9
      • Matter in Our Surroundings
      • Is Matter Around Us Pure
      • Atoms and Molecules
      • Structure of the Atom
      • The Fundamental Unit of Life
    • Class 10
      • Chemistry
    • Class 11
      • Chemisrty
        • Chapter – 1 Some Basic Concepts of Chemistry
        • Chapter – 2 Structure Of Atom
        • Chapter – 3 Classification of Elements and Periodicity in Properties
        • Chapter – 4 Chemical Bonding and Molecular Structure
        • Chapter – 5 States of Matter
        • Chapter – 6 Thermodynamics
        • Chapter – 7 Equilibrium
        • Chapter – 8 Redox Reaction
        • Chapter – 10 s-Block Elements
        • Chapter – 13 Hydrocarbons
    • Class 12
      • Chemistry
        • The Solid State
        • Solutions
        • Electrochemistry
        • Chemical Kinetics
        • Surface Chemistry
        • p – Block Elements
        • d & f Block Elements
        • Coordination Compounds
        • Haloalkanes and Haloarenes
        • Alcohols, Phenols and Ethers
        • Aldehydes, Ketones and Carboxylic Acids
        • Amines
        • Biomolecules
        • Polymers
        • Chemistry in Everyday Life
    • Practice Questions
      • +1
      • +2
    • Test Series
      • Class 9 Test Series
      • Class 10 Test Series
      • Class 11 Test Series
      • Class 12 Test Series
    • World
      • Current Affairs
      • General Knowledge
    ScienceMotive
    Home » Quiz on Classification of Elements and Periodic Properties

    Quiz on Classification of Elements and Periodic Properties

    Dr. Vikas JasrotiaBy Dr. Vikas JasrotiaOctober 6, 2021No Comments
    Share
    Facebook WhatsApp Telegram Twitter Email

    Quiz on Classification of Elements and Periodic Properties

    Quiz on Classification of Elements and Periodic Properties

    The periodic table may be defined as the table which classifies all the known elements in accordance with their properties in such a way that elements with similar properties are grouped together in the same vertical column and dissimilar elements are separated from one another.

    Law of triads:– According to the law of triads, elements were placed in a group of 3 and they were called triads. These were placed in the increasing order of atomic masses

    Newland’s law of octaves:– The elements were placed in increasing order of their atomic weights and it was noted that every eighth element had properties similar to the first element.
    The relationship was just like every eighth note that resembles the first in octaves of music. Newlands’s Law of Octaves seemed to be true to elements only up to calcium.

    Mendeleev’s periodic law: 
    “The properties of the elements are a periodic function of their atomic weights.” Mendeleev arranged elements in horizontal rows and vertical columns of a table in order of their increasing atomic weights in such a way that the elements with similar properties occupied the same vertical column or group. Mendeleev left gaps under silicon and aluminium and those were known as Eka aluminium and Eka silicon.
    Later it was discovered that Eka aluminium had properties similar to gallium and Eka silicon had properties similar to germanium.
    According to modern periodic law,
    “The physical and chemical properties of the elements are periodic functions of their atomic numbers”.

    The modern form of the periodic table was discovered by henry Mosley and hence it was also called henry Mosley’s periodic table.
    The Periodic Law revealed important analogies among the 94 naturally occurring elements (neptunium and plutonium like actinium and protoactinium are also found in pitchblende – an ore of uranium).
    The horizontal rows of the periodic table are called periods while the vertical columns are called groups or families.

    Advertisement
    Share. Facebook Twitter Pinterest LinkedIn Tumblr Email
    Dr. Vikas Jasrotia
    • Website

    Related Posts

    How to Find the Neutrons

    February 2, 2023

    Value-Based Questions Class 11 Chemistry Chapter 7

    February 1, 2023

    Sample Paper Class 11 Chemistry

    January 31, 2023

    Leave A Reply Cancel Reply

    READ ALSO

    How to Find the Neutrons

    February 2, 2023

    Value-Based Questions Class 11 Chemistry Chapter 7

    February 1, 2023

    Sample Paper Class 11 Chemistry

    January 31, 2023

    Class 9 Science Chapter 2 Extra Questions and Answers

    January 30, 2023
    Chapter - 2 Structure Of Atom

    How to Find the Neutrons

    By Dr. Vikas JasrotiaFebruary 2, 2023

    How to Find the Neutrons, electrons, and Protons Calculate the number of electrons, protons, and…

    Chapter - 7 Equilibrium

    Value-Based Questions Class 11 Chemistry Chapter 7

    By Dr. Vikas JasrotiaFebruary 1, 2023

    Value-Based Questions Class 11 Chemistry Chapter 7 According to Arrhenius’s theory, acids are substances that…

    Class 11

    Sample Paper Class 11 Chemistry

    By Dr. Vikas JasrotiaJanuary 31, 2023

    Sample Paper Class 11 Chemistry This post contains a detailed syllabus for Class XI Chemistry…

    Advertisement
    Advertisement
    Facebook Twitter Instagram Pinterest YouTube
    • Disclaimer
    • Contact Us
    • Privacy Policy 
    • Terms and Conditions
    © 2023 All Rights Reserved ScienceMotive.

    Type above and press Enter to search. Press Esc to cancel.